Which robots? We can barely manage to keep rovers alive on Mars and they aren't lifting 500lbs space rocks. The Chinese couldn't keep their rover losing its dri

Which robots? We can barely manage to keep rovers alive on Mars and they aren't lifting 500lbs space rocks. The Chinese couldn't keep their rover losing its drive train on the moon after 48 hours. The ESA has never had a moon rover. We're very, very far from industrious robots on Earth, let alone on the moon or mars. We aren't even building mega-structures with robots here outside of trivial edge cases, why do you think we can do it on the moon? Also from a cost per lbs perspective, swarms of giant building robots will cost more than the GDP of most nation states. A handful of astronauts with powertools working with ultra-light materials won't. For example, a small team can raise up Bigelow's mostly inflatable moon base concept in days: http://spaceindustrynews.com/nasa-and-bigelow-aerospace-make-plans-for-moon-base/ http://spaceindustrynews.com/nasa-and-bigelow-aerospace-make... No 50,000 lbs space mechs required.